[Mono-bugs] [Bug 397246] New: WinForms really slow on OSX

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=397246


           Summary: WinForms really slow on OSX
           Product: Mono: Class Libraries
           Version: 1.9.0
          Platform: x86
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: atlas at spiralgraphics.biz
         QAContact: mono-bugs at lists.ximian.com
          Found By: Development


Created an attachment (id=220200)
 --> (https://bugzilla.novell.com/attachment.cgi?id=220200)
Sample .NET application that runs slowly on OSX.

WinForms appear to be very slow on OSX.  To see the problem you need a more
complex interface, such as the application provided in the attachment.

When I run application on a Vista machine with Core 2 Duo 2.0 Ghz, I experience
this:

1. Load exe.  Main interface will paint instantly.
2. If a dialog pops up asking you to register application, just click "Later".
3. Click File > New.  Interface will update instantly.
4. Click Create > Insert > Generator > Cells.  Interface updates in about 0.3
seconds.

When I perform same steps on OSX 1.4 machine with Core Duo 1.6 Ghz (clean
system purchased only for Mono testing), I experience this:

1. Load exe.  Main interface takes 18 seconds to finish refreshing.
2. If a dialog pops up asking you to register application, you must click
"Later".  But on Mono the dialog may need to be enlarged before the "Later"
button becomes visible.
3. Click File > New.  It takes about 12 seconds for the interface to finish
painting.
4. Click Create > Insert > Generator > Cells.  It takes about 19 seconds for
interface to stop painting.

The OSX system used for testing is slower than the Vista system, but even my
old 1.8 Ghz Celeron XP machine beats the OSX machine by a factor of about 15x
when it comes to painting WinForms.


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